/*
 * Kyle Box
 * EECS 338 Spring 2007
 * Assignment 7: RPC Programming
 *
 * Written and compiled on Debian Linux 2.4.29
 * Compiled on gcc version 3.3.5 with:
 * gcc -Wall mother.c client_svc.c -o mother
 */

#include "cookie.h"

// getmemycookie_1_svc
// Handles handing out cookies to Tina and Judy
int *getmemycookie_1_svc(int *argp, struct svc_req *rqstp)
{
	static int result, tina = 0, cookies = 20;
    
    if (cookies <= 0) { // No cookies left
        result = -2;
    } else if (*argp == 0) { // Tina
        tina++;
        cookies--;
        result = 1;
    } else if (*argp == 1) { // Judy
        if (tina < 2) {
            result = -1;
        } else {
            tina = 0;
            cookies--;
            result = 1;
        }
    } else { // Invalid parameter
        result = -3;        
    }

	return &result;
}

// terminate_1_svc
// Tina and Judy call this when they terminate
// When both are terminated, mother will terminate as well
void *terminate_1_svc(int *argp, struct svc_req *rqstp)
{
    static int tina = 0, judy = 0;
    if (*argp == 0) { // Tina has terminated
        tina = 1;
    } else { // Judy has terminated
        judy = 1;
    }
    // If both have terminated, exit
    if (tina && judy) {
        exit(0);
    }
    return NULL;
}